Probably the 2nd option is the easiest one: in your BSP (otherwise you need to clone %_WINCEROOT%\platform\common\src\x86\common\intr) after the various calls to OALIntrStaticTranslate you can call OALIntrRequestSysIntr (you need to use OAL_INTR_DYNAMIC)Luca Calligaris lucaDOTcalligarisATeurotechDOTcom www.eurotech.com Check my blog: http://lcalligaris.wordpress.com